1250 



Agriculture Abroad. 



[mar.^ 



killed. In spite of the fact that in some cases secondary eyes 

 are developed, seed tubers may undoubtedly be very seriously 

 injured when the fungus is present in quantity. The only 

 preventive measure which can be recommended at present 

 is to avoid planting diseased tubers. If badly affected tubers 

 are planted; not only are " misses " hkely to occur, but the 

 soil is likely to become seriously contaminated with Skin Spot 

 fungus. 



AGRICULTURE ABROAD. 



On the basis of semi-official returns Professor Honcamp, of 

 Rostock,* gives the following figures as to the consumption 

 Manures in G-erman artificial manures in Germany during 

 and Sweden twelve months just prior to the outbreak 

 of war and twelve months ended shortly 

 before the cessation of hostilities : 



Phosphoric 

 Nitrogen. Acid. Potash. 

 (N). (P,0 ). (K,0). 

 Tons. Tons. Tons. 

 I st May, 1 91 3 to 30th April, 1 91 4 210,000 630,000 557,350 

 I St May, 1 91 7 to 30th April, 1 91 8 92,334 325,800 779,400 



Calculated in pounds per acre (roughly 32,000,000 hectares, 

 80,000,000 acres, under cultivation in Germany 1913-14) these 

 figures would work out : 



Phosphoric 

 Nitrogen. Acid. Potash, 

 (N). (P,OJ. (K,0). 



1913-14 5-84 17*5 15-5 



191 7-18 .. .. .. .. 2-56 9'o6 2T-68 



This would amount to an application in pounds per acre of 

 total cultivated area of the following quantities of sulphate of 

 ammonia (20 per cent. N.), superphosphate (18 per cent.) and 

 kainit (13 per cent.) (or their equivalents — nitrate of soda, 

 nitrolim etc. ; basic slag ; potash salts). 



Sulphate Super- 



of phosphate. Kaini 

 A mmonia. 



lb. lb. lb. 



1913-14 .. .. .. .. 29-2 97*2 119 



1917-18 .. .. .. .. 12-8 50-3 167 



* Ueber Produktion Verbrauch und Bedarf an Pflanzenncihrstoffen. 

 Fiihling's Landw. Zeitung^ 15/16 Heft, 1919, p. 282. 



